Means of forming joints in rails.



H. G. GILLMOR.

MEANS OF FORMING JOINTS IN RAILS. APPLICATION FILED JUNE 2, 19 1s.

1,1 33,557. Patented Mar. 30, 1915.

F/ Q L 3141mm l'oz R/MZAM witnesses nona'rio e. GILLMOR, or sonnet/worn,VIRGINIA.

MEANS OF FORMING JOINTS IN RAILS.

Specification of Letters Patent.

Patented Mar. 34), 1915.

Application filed June 2, 1913. Serial No. 771,238.

To all whom it may concern:

Be it known that I, HonA'rIo G. GILLMoR, a citizen of the United States,residing at Portsmouth, in the county of Norfolk, State of Virginia,have invented an Improvement in the Means of Forming Joints in Rails, ofwhich the following is'a specification accompanied by drawings.

My invention'relates to railway rall joints, although the uses of themeans employed to form the rail joints are not limited to such jointsfor my invention may be used 1n any connection in which it may be foundapplicable.

One of the objects of my invention 1s to provide an eflicient means forjoining rails free from parts liable to work loose after having oncebeen properly placed.

Another object of my invention is to provide such support for-the railends asto prevent deflections of the rails at the oint under thestresses due to the passing of the wheels.

To the accomplishment of these ob ects and such others as mayhereinafter appear, as will be readily understood by those skilled inthe art, the invention comprises a rail joint embodying the features ofconstruction, combination of elements and arrangement of parts havingthe general mode of operation substantially as hereinafter described andclaimed.

The preferred embodiment of the lnvention is shown in the accompanyingdrawings, in which Figure l is a side elevat on of the rail joint. Fig.2 is a sectional view through the joint at the plane indicated by X 'X1n Fig. 1. Fig. 3 is a section at the plane 1ndicated at X X in Fig. 1,showing one of the positions of the parts while the fish or angle barsare being drawn into place. Fig. 4 is a plan view of the oint.

Similar letters refer to similar parts throughout the drawings.

A represents the rails.

B represents a base plate, which ispreferably trough shaped wlth arecess 0 1n the top portion, the sides extending to form flanges P,which are recessed at the sides to receive the fish bars and formshoulders L to prevent longitudinal movement of the base plate. Thebottom of the base plate 13 is provided with longitudinal ribs 0,preferably formed with cylindrical surfaces at D.

E represents fish or angle bars, which are constructed with flanges Fand depending arms G, which depending arms are, at their lower edges, insection, hook shaped at H and arranged to engage with the ribs C of thebase plate B. The depending portions G of the angle bars are so formedthat when the lower portions H engage with the ribs C of the base plateB, the under surfaces of the flange F will engage with the uppersurfaces of the base flanges of the rails at their outer edges as shownin Fig. 8.

I are bolts fitted with nuts K. Spikes M secure the rails and the partsof the joint to the ties N.

In assembling the parts, the base plate 13 is placed. The fish bars arethen placed with the hook formed portion H of the depending arms Gengaging with the ribs (J at the surfaces 1). The upper portions of thefish bars are then drawn toward one another until thebottom surfaces ofthe flanges F of the fish bars are in contact with the upper surfaces ofthe flanges of the rails A. The bolts I are then inserted and the nuts Kput on and screwed up. The fish bars move angularly about axes in theribs C and the positions of these axes are such that the angularmovement of the fish bars about these axes, as the bolts are tightened,causes the fish bars to exert equal and opposite tension stresstransversely upon the base plate and at the same time vertical stresseswhich press the base plate upwardly against the bottoms of the bases andthe flanges F of the fish bar downwardly upon the tops of the baseflanges of the rails, in such manner that the base flanges of the railsare firmly clamped. The re siliency of the material of which the bars Eare constructed permits slight deformation and when the bars E are intheir final position as shown in Fig. 1 they are, not onl engaging theunder surfaces of the heads and upper surfaces of the base flanges ofthe rails, but are pressing the base plate firmly against the lowersurfaces of the bases of the rails. The rails are therefore, as the barsE move angularly about the axes lying within the base, drawn intoaccurate vertical alinement and the several parts of the joint givensuch initial stresses that the stresses brought upon the joint as thewheels pass from one rail to the other are distributed among andresisted by the several parts without permitting the vertical movementsof the rail ends which take place in rail joints as ordinarilyconstructed.

Obviously some features of the invention may be used without othersand;theirnren-v tion may be embodied in widely varying forms Within thescope of the artisan.

Therefore without limiting the invention to the construction shownanddescribed orenuinerating equivalents, I claim and desire to secure byLetters Patent the; following: 1. A sidebar forrail joints constructed 1so as totengage a chair-below the rail-that rotational IHOVG'IHGIItS Ofsaid ban-about an axis below-and betweenthe two edges thereof willforcesurfaces of saidbar into engagement with the upper surfaeeof the baseflange of the rail and thereby produce pressure ofsaid chair and baruponthe rail base flange.

2. A rail joint-comprising-a-chair engaging thebottoni ofthe baseflanges ofthe meeting ends ofrails-and'aside-bar so enbars. so engagingsaid chair atopposite-sides 0991:1101 this .patentmay. be; obtained forof the rails that rotation of said bars about axes below and between theedges of the rails willforce surfaces of said bars into engagementwiththe upper surfaces of the rail base flanges and thereby produceupward pressure of said chair upon said rail 1 bases.

4. A rail: joint comprising the meeting rail ends, a base plateoverlapping said rail ends and a fish bar-constructed to rotate about anaxis below and "between the edges of the rail to produce transversestresses in said base plate and verticalstressesof the base plateupwardly and of the fish bar downwardly upon the rail base-flanges.

5. A rail joint, comprising the rails, a 7

base plate engaging'w-ith the bases of said rails and side barsconstructed to rotate about: axes lying below, at-opposite sides of andbetween the two edges of the rails, and producetransverse stress in saidbase plate and vertiealstresses of 'the base plate upwardly and of theside bars downwardly upon the rail base fl anges. r

In testimony that I: claim the foregoing as my invention I have-signed;this specification in the a presence oftwo subscribing witnesses. V

y H. G. GILLMOR.

Witnesses F. M. KIRoI-IivimR,

E. FITZGERALD.

five cents each, by :addressingthe Commissioner 1 otiri'atentaaWashingtoni 110.? l

